COCTS

China Ocean Colour & Temperature Scanner

Satellites

HY-1A, HY-1B, HY-1C, HY-1D

Status

Operational - Utilised in the period: 2002 to ~ 2016

Mission

Ocean colour and sea surface temperature

Instrument type

Multi-purpose imaging VIS/IR radiometer -10 channels (8 narrow-bandwidth in VNIR, 2 in TIR)

Scanning technique

Cross-track scanning.  1024 pixel/line, swath 1400 km

Coverage/cycle

Global daily coverage for short-wave channels, two coverages/day for TIR channels

Resolution (s.s.p.)

1.1 km

Resources

Mass: 50 kg  -  Power: 70 W  -  Data rate: 670 kbps

Central wavelength

Bandwidth

Radiometric accuracy (SNR @ specified input spectral radiance, or NE?T)

412 nm

20 nm

…… @ …… W m-2 sr-1 µm-1

443 nm

20 nm

…… @ …… W m-2 sr-1 µm-1

490 nm

20 nm

…… @ …… W m-2 sr-1 µm-1

520 nm

20 nm

…… @ …… W m-2 sr-1 µm-1

565 nm

20 nm

…… @ …… W m-2 sr-1 µm-1

670 nm

20 nm

…… @ …… W m-2 sr-1 µm-1

765 nm

40 nm

…… @ …… W m-2 sr-1 µm-1

865 nm

40 nm

…… @ …… W m-2 sr-1 µm-1

10.85 μm

1.10 μm

0.2 K @ 300 K

11.95 μm

1.10 μm

0.2 K @ 300 K